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[ALSA] sun-cs4231: use cs4231-regs.h
[deliverable/linux.git] / sound / sparc / cs4231.c
1 /*
2 * Driver for CS4231 sound chips found on Sparcs.
3 * Copyright (C) 2002 David S. Miller <davem@redhat.com>
4 *
5 * Based entirely upon drivers/sbus/audio/cs4231.c which is:
6 * Copyright (C) 1996, 1997, 1998 Derrick J Brashear (shadow@andrew.cmu.edu)
7 * and also sound/isa/cs423x/cs4231_lib.c which is:
8 * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
9 */
10
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/slab.h>
14 #include <linux/delay.h>
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/moduleparam.h>
18 #include <linux/irq.h>
19 #include <linux/io.h>
20
21
22 #include <sound/driver.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/info.h>
26 #include <sound/control.h>
27 #include <sound/timer.h>
28 #include <sound/initval.h>
29 #include <sound/pcm_params.h>
30
31 #ifdef CONFIG_SBUS
32 #define SBUS_SUPPORT
33 #include <asm/sbus.h>
34 #endif
35
36 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
37 #define EBUS_SUPPORT
38 #include <linux/pci.h>
39 #include <asm/ebus.h>
40 #endif
41
42 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
43 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */
44 /* Enable this card */
45 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
46
47 module_param_array(index, int, NULL, 0444);
48 MODULE_PARM_DESC(index, "Index value for Sun CS4231 soundcard.");
49 module_param_array(id, charp, NULL, 0444);
50 MODULE_PARM_DESC(id, "ID string for Sun CS4231 soundcard.");
51 module_param_array(enable, bool, NULL, 0444);
52 MODULE_PARM_DESC(enable, "Enable Sun CS4231 soundcard.");
53 MODULE_AUTHOR("Jaroslav Kysela, Derrick J. Brashear and David S. Miller");
54 MODULE_DESCRIPTION("Sun CS4231");
55 MODULE_LICENSE("GPL");
56 MODULE_SUPPORTED_DEVICE("{{Sun,CS4231}}");
57
58 #ifdef SBUS_SUPPORT
59 struct sbus_dma_info {
60 spinlock_t lock; /* DMA access lock */
61 int dir;
62 void __iomem *regs;
63 };
64 #endif
65
66 struct snd_cs4231;
67 struct cs4231_dma_control {
68 void (*prepare)(struct cs4231_dma_control *dma_cont,
69 int dir);
70 void (*enable)(struct cs4231_dma_control *dma_cont, int on);
71 int (*request)(struct cs4231_dma_control *dma_cont,
72 dma_addr_t bus_addr, size_t len);
73 unsigned int (*address)(struct cs4231_dma_control *dma_cont);
74 void (*preallocate)(struct snd_cs4231 *chip,
75 struct snd_pcm *pcm);
76 #ifdef EBUS_SUPPORT
77 struct ebus_dma_info ebus_info;
78 #endif
79 #ifdef SBUS_SUPPORT
80 struct sbus_dma_info sbus_info;
81 #endif
82 };
83
84 struct snd_cs4231 {
85 spinlock_t lock; /* registers access lock */
86 void __iomem *port;
87
88 struct cs4231_dma_control p_dma;
89 struct cs4231_dma_control c_dma;
90
91 u32 flags;
92 #define CS4231_FLAG_EBUS 0x00000001
93 #define CS4231_FLAG_PLAYBACK 0x00000002
94 #define CS4231_FLAG_CAPTURE 0x00000004
95
96 struct snd_card *card;
97 struct snd_pcm *pcm;
98 struct snd_pcm_substream *playback_substream;
99 unsigned int p_periods_sent;
100 struct snd_pcm_substream *capture_substream;
101 unsigned int c_periods_sent;
102 struct snd_timer *timer;
103
104 unsigned short mode;
105 #define CS4231_MODE_NONE 0x0000
106 #define CS4231_MODE_PLAY 0x0001
107 #define CS4231_MODE_RECORD 0x0002
108 #define CS4231_MODE_TIMER 0x0004
109 #define CS4231_MODE_OPEN (CS4231_MODE_PLAY | CS4231_MODE_RECORD | \
110 CS4231_MODE_TIMER)
111
112 unsigned char image[32]; /* registers image */
113 int mce_bit;
114 int calibrate_mute;
115 struct mutex mce_mutex; /* mutex for mce register */
116 struct mutex open_mutex; /* mutex for ALSA open/close */
117
118 union {
119 #ifdef SBUS_SUPPORT
120 struct sbus_dev *sdev;
121 #endif
122 #ifdef EBUS_SUPPORT
123 struct pci_dev *pdev;
124 #endif
125 } dev_u;
126 unsigned int irq[2];
127 unsigned int regs_size;
128 struct snd_cs4231 *next;
129 };
130
131 static struct snd_cs4231 *cs4231_list;
132
133 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for
134 * now.... -DaveM
135 */
136
137 /* IO ports */
138 #include <sound/cs4231-regs.h>
139
140 /* XXX offsets are different than PC ISA chips... */
141 #define CS4231U(chip, x) ((chip)->port + ((c_d_c_CS4231##x) << 2))
142
143 /* SBUS DMA register defines. */
144
145 #define APCCSR 0x10UL /* APC DMA CSR */
146 #define APCCVA 0x20UL /* APC Capture DMA Address */
147 #define APCCC 0x24UL /* APC Capture Count */
148 #define APCCNVA 0x28UL /* APC Capture DMA Next Address */
149 #define APCCNC 0x2cUL /* APC Capture Next Count */
150 #define APCPVA 0x30UL /* APC Play DMA Address */
151 #define APCPC 0x34UL /* APC Play Count */
152 #define APCPNVA 0x38UL /* APC Play DMA Next Address */
153 #define APCPNC 0x3cUL /* APC Play Next Count */
154
155 /* Defines for SBUS DMA-routines */
156
157 #define APCVA 0x0UL /* APC DMA Address */
158 #define APCC 0x4UL /* APC Count */
159 #define APCNVA 0x8UL /* APC DMA Next Address */
160 #define APCNC 0xcUL /* APC Next Count */
161 #define APC_PLAY 0x30UL /* Play registers start at 0x30 */
162 #define APC_RECORD 0x20UL /* Record registers start at 0x20 */
163
164 /* APCCSR bits */
165
166 #define APC_INT_PENDING 0x800000 /* Interrupt Pending */
167 #define APC_PLAY_INT 0x400000 /* Playback interrupt */
168 #define APC_CAPT_INT 0x200000 /* Capture interrupt */
169 #define APC_GENL_INT 0x100000 /* General interrupt */
170 #define APC_XINT_ENA 0x80000 /* General ext int. enable */
171 #define APC_XINT_PLAY 0x40000 /* Playback ext intr */
172 #define APC_XINT_CAPT 0x20000 /* Capture ext intr */
173 #define APC_XINT_GENL 0x10000 /* Error ext intr */
174 #define APC_XINT_EMPT 0x8000 /* Pipe empty interrupt (0 write to pva) */
175 #define APC_XINT_PEMP 0x4000 /* Play pipe empty (pva and pnva not set) */
176 #define APC_XINT_PNVA 0x2000 /* Playback NVA dirty */
177 #define APC_XINT_PENA 0x1000 /* play pipe empty Int enable */
178 #define APC_XINT_COVF 0x800 /* Cap data dropped on floor */
179 #define APC_XINT_CNVA 0x400 /* Capture NVA dirty */
180 #define APC_XINT_CEMP 0x200 /* Capture pipe empty (cva and cnva not set) */
181 #define APC_XINT_CENA 0x100 /* Cap. pipe empty int enable */
182 #define APC_PPAUSE 0x80 /* Pause the play DMA */
183 #define APC_CPAUSE 0x40 /* Pause the capture DMA */
184 #define APC_CDC_RESET 0x20 /* CODEC RESET */
185 #define APC_PDMA_READY 0x08 /* Play DMA Go */
186 #define APC_CDMA_READY 0x04 /* Capture DMA Go */
187 #define APC_CHIP_RESET 0x01 /* Reset the chip */
188
189 /* EBUS DMA register offsets */
190
191 #define EBDMA_CSR 0x00UL /* Control/Status */
192 #define EBDMA_ADDR 0x04UL /* DMA Address */
193 #define EBDMA_COUNT 0x08UL /* DMA Count */
194
195 /*
196 * Some variables
197 */
198
199 static unsigned char freq_bits[14] = {
200 /* 5510 */ 0x00 | CS4231_XTAL2,
201 /* 6620 */ 0x0E | CS4231_XTAL2,
202 /* 8000 */ 0x00 | CS4231_XTAL1,
203 /* 9600 */ 0x0E | CS4231_XTAL1,
204 /* 11025 */ 0x02 | CS4231_XTAL2,
205 /* 16000 */ 0x02 | CS4231_XTAL1,
206 /* 18900 */ 0x04 | CS4231_XTAL2,
207 /* 22050 */ 0x06 | CS4231_XTAL2,
208 /* 27042 */ 0x04 | CS4231_XTAL1,
209 /* 32000 */ 0x06 | CS4231_XTAL1,
210 /* 33075 */ 0x0C | CS4231_XTAL2,
211 /* 37800 */ 0x08 | CS4231_XTAL2,
212 /* 44100 */ 0x0A | CS4231_XTAL2,
213 /* 48000 */ 0x0C | CS4231_XTAL1
214 };
215
216 static unsigned int rates[14] = {
217 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050,
218 27042, 32000, 33075, 37800, 44100, 48000
219 };
220
221 static struct snd_pcm_hw_constraint_list hw_constraints_rates = {
222 .count = ARRAY_SIZE(rates),
223 .list = rates,
224 };
225
226 static int snd_cs4231_xrate(struct snd_pcm_runtime *runtime)
227 {
228 return snd_pcm_hw_constraint_list(runtime, 0,
229 SNDRV_PCM_HW_PARAM_RATE,
230 &hw_constraints_rates);
231 }
232
233 static unsigned char snd_cs4231_original_image[32] =
234 {
235 0x00, /* 00/00 - lic */
236 0x00, /* 01/01 - ric */
237 0x9f, /* 02/02 - la1ic */
238 0x9f, /* 03/03 - ra1ic */
239 0x9f, /* 04/04 - la2ic */
240 0x9f, /* 05/05 - ra2ic */
241 0xbf, /* 06/06 - loc */
242 0xbf, /* 07/07 - roc */
243 0x20, /* 08/08 - pdfr */
244 CS4231_AUTOCALIB, /* 09/09 - ic */
245 0x00, /* 0a/10 - pc */
246 0x00, /* 0b/11 - ti */
247 CS4231_MODE2, /* 0c/12 - mi */
248 0x00, /* 0d/13 - lbc */
249 0x00, /* 0e/14 - pbru */
250 0x00, /* 0f/15 - pbrl */
251 0x80, /* 10/16 - afei */
252 0x01, /* 11/17 - afeii */
253 0x9f, /* 12/18 - llic */
254 0x9f, /* 13/19 - rlic */
255 0x00, /* 14/20 - tlb */
256 0x00, /* 15/21 - thb */
257 0x00, /* 16/22 - la3mic/reserved */
258 0x00, /* 17/23 - ra3mic/reserved */
259 0x00, /* 18/24 - afs */
260 0x00, /* 19/25 - lamoc/version */
261 0x00, /* 1a/26 - mioc */
262 0x00, /* 1b/27 - ramoc/reserved */
263 0x20, /* 1c/28 - cdfr */
264 0x00, /* 1d/29 - res4 */
265 0x00, /* 1e/30 - cbru */
266 0x00, /* 1f/31 - cbrl */
267 };
268
269 static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
270 {
271 #ifdef EBUS_SUPPORT
272 if (cp->flags & CS4231_FLAG_EBUS)
273 return readb(reg_addr);
274 else
275 #endif
276 #ifdef SBUS_SUPPORT
277 return sbus_readb(reg_addr);
278 #endif
279 }
280
281 static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val,
282 void __iomem *reg_addr)
283 {
284 #ifdef EBUS_SUPPORT
285 if (cp->flags & CS4231_FLAG_EBUS)
286 return writeb(val, reg_addr);
287 else
288 #endif
289 #ifdef SBUS_SUPPORT
290 return sbus_writeb(val, reg_addr);
291 #endif
292 }
293
294 /*
295 * Basic I/O functions
296 */
297
298 static void snd_cs4231_ready(struct snd_cs4231 *chip)
299 {
300 int timeout;
301
302 for (timeout = 250; timeout > 0; timeout--) {
303 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
304 if ((val & CS4231_INIT) == 0)
305 break;
306 udelay(100);
307 }
308 }
309
310 static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg,
311 unsigned char value)
312 {
313 snd_cs4231_ready(chip);
314 #ifdef CONFIG_SND_DEBUG
315 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
316 snd_printdd("out: auto calibration time out - reg = 0x%x, "
317 "value = 0x%x\n",
318 reg, value);
319 #endif
320 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
321 wmb();
322 __cs4231_writeb(chip, value, CS4231U(chip, REG));
323 mb();
324 }
325
326 static inline void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg,
327 unsigned char mask, unsigned char value)
328 {
329 unsigned char tmp = (chip->image[reg] & mask) | value;
330
331 chip->image[reg] = tmp;
332 if (!chip->calibrate_mute)
333 snd_cs4231_dout(chip, reg, tmp);
334 }
335
336 static void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg,
337 unsigned char value)
338 {
339 snd_cs4231_dout(chip, reg, value);
340 chip->image[reg] = value;
341 mb();
342 }
343
344 static unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg)
345 {
346 snd_cs4231_ready(chip);
347 #ifdef CONFIG_SND_DEBUG
348 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
349 snd_printdd("in: auto calibration time out - reg = 0x%x\n",
350 reg);
351 #endif
352 __cs4231_writeb(chip, chip->mce_bit | reg, CS4231U(chip, REGSEL));
353 mb();
354 return __cs4231_readb(chip, CS4231U(chip, REG));
355 }
356
357 /*
358 * CS4231 detection / MCE routines
359 */
360
361 static void snd_cs4231_busy_wait(struct snd_cs4231 *chip)
362 {
363 int timeout;
364
365 /* looks like this sequence is proper for CS4231A chip (GUS MAX) */
366 for (timeout = 5; timeout > 0; timeout--)
367 __cs4231_readb(chip, CS4231U(chip, REGSEL));
368
369 /* end of cleanup sequence */
370 for (timeout = 500; timeout > 0; timeout--) {
371 int val = __cs4231_readb(chip, CS4231U(chip, REGSEL));
372 if ((val & CS4231_INIT) == 0)
373 break;
374 msleep(1);
375 }
376 }
377
378 static void snd_cs4231_mce_up(struct snd_cs4231 *chip)
379 {
380 unsigned long flags;
381 int timeout;
382
383 spin_lock_irqsave(&chip->lock, flags);
384 snd_cs4231_ready(chip);
385 #ifdef CONFIG_SND_DEBUG
386 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
387 snd_printdd("mce_up - auto calibration time out (0)\n");
388 #endif
389 chip->mce_bit |= CS4231_MCE;
390 timeout = __cs4231_readb(chip, CS4231U(chip, REGSEL));
391 if (timeout == 0x80)
392 snd_printdd("mce_up [%p]: serious init problem - "
393 "codec still busy\n",
394 chip->port);
395 if (!(timeout & CS4231_MCE))
396 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f),
397 CS4231U(chip, REGSEL));
398 spin_unlock_irqrestore(&chip->lock, flags);
399 }
400
401 static void snd_cs4231_mce_down(struct snd_cs4231 *chip)
402 {
403 unsigned long flags;
404 int timeout;
405
406 spin_lock_irqsave(&chip->lock, flags);
407 snd_cs4231_busy_wait(chip);
408 #ifdef CONFIG_SND_DEBUG
409 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
410 snd_printdd("mce_down [%p] - auto calibration time out (0)\n",
411 CS4231U(chip, REGSEL));
412 #endif
413 chip->mce_bit &= ~CS4231_MCE;
414 timeout = __cs4231_readb(chip, CS4231U(chip, REGSEL));
415 __cs4231_writeb(chip, chip->mce_bit | (timeout & 0x1f),
416 CS4231U(chip, REGSEL));
417 if (timeout == 0x80)
418 snd_printdd("mce_down [%p]: serious init problem - "
419 "codec still busy\n",
420 chip->port);
421 if ((timeout & CS4231_MCE) == 0) {
422 spin_unlock_irqrestore(&chip->lock, flags);
423 return;
424 }
425 snd_cs4231_busy_wait(chip);
426
427 /* calibration process */
428
429 snd_cs4231_ready(chip);
430 snd_cs4231_ready(chip);
431 timeout = snd_cs4231_in(chip, CS4231_TEST_INIT);
432 if ((timeout & CS4231_CALIB_IN_PROGRESS) == 0) {
433 snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
434 spin_unlock_irqrestore(&chip->lock, flags);
435 return;
436 }
437
438 /* in 10ms increments, check condition, up to 250ms */
439 timeout = 25;
440 while (snd_cs4231_in(chip, CS4231_TEST_INIT) &
441 CS4231_CALIB_IN_PROGRESS) {
442
443 spin_unlock_irqrestore(&chip->lock, flags);
444 if (--timeout < 0) {
445 snd_printk("mce_down - "
446 "auto calibration time out (2)\n");
447 return;
448 }
449 msleep(10);
450 spin_lock_irqsave(&chip->lock, flags);
451 }
452
453 /* in 10ms increments, check condition, up to 100ms */
454 timeout = 10;
455 while (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) {
456 spin_unlock_irqrestore(&chip->lock, flags);
457 if (--timeout < 0) {
458 snd_printk("mce_down - "
459 "auto calibration time out (3)\n");
460 return;
461 }
462 msleep(10);
463 spin_lock_irqsave(&chip->lock, flags);
464 }
465 spin_unlock_irqrestore(&chip->lock, flags);
466 }
467
468 static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
469 struct snd_pcm_substream *substream,
470 unsigned int *periods_sent)
471 {
472 struct snd_pcm_runtime *runtime = substream->runtime;
473
474 while (1) {
475 unsigned int period_size = snd_pcm_lib_period_bytes(substream);
476 unsigned int offset = period_size * (*periods_sent);
477
478 BUG_ON(period_size >= (1 << 24));
479
480 if (dma_cont->request(dma_cont,
481 runtime->dma_addr + offset, period_size))
482 return;
483 (*periods_sent) = ((*periods_sent) + 1) % runtime->periods;
484 }
485 }
486
487 static void cs4231_dma_trigger(struct snd_pcm_substream *substream,
488 unsigned int what, int on)
489 {
490 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
491 struct cs4231_dma_control *dma_cont;
492
493 if (what & CS4231_PLAYBACK_ENABLE) {
494 dma_cont = &chip->p_dma;
495 if (on) {
496 dma_cont->prepare(dma_cont, 0);
497 dma_cont->enable(dma_cont, 1);
498 snd_cs4231_advance_dma(dma_cont,
499 chip->playback_substream,
500 &chip->p_periods_sent);
501 } else {
502 dma_cont->enable(dma_cont, 0);
503 }
504 }
505 if (what & CS4231_RECORD_ENABLE) {
506 dma_cont = &chip->c_dma;
507 if (on) {
508 dma_cont->prepare(dma_cont, 1);
509 dma_cont->enable(dma_cont, 1);
510 snd_cs4231_advance_dma(dma_cont,
511 chip->capture_substream,
512 &chip->c_periods_sent);
513 } else {
514 dma_cont->enable(dma_cont, 0);
515 }
516 }
517 }
518
519 static int snd_cs4231_trigger(struct snd_pcm_substream *substream, int cmd)
520 {
521 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
522 int result = 0;
523
524 switch (cmd) {
525 case SNDRV_PCM_TRIGGER_START:
526 case SNDRV_PCM_TRIGGER_STOP:
527 {
528 unsigned int what = 0;
529 struct snd_pcm_substream *s;
530 unsigned long flags;
531
532 snd_pcm_group_for_each_entry(s, substream) {
533 if (s == chip->playback_substream) {
534 what |= CS4231_PLAYBACK_ENABLE;
535 snd_pcm_trigger_done(s, substream);
536 } else if (s == chip->capture_substream) {
537 what |= CS4231_RECORD_ENABLE;
538 snd_pcm_trigger_done(s, substream);
539 }
540 }
541
542 spin_lock_irqsave(&chip->lock, flags);
543 if (cmd == SNDRV_PCM_TRIGGER_START) {
544 cs4231_dma_trigger(substream, what, 1);
545 chip->image[CS4231_IFACE_CTRL] |= what;
546 } else {
547 cs4231_dma_trigger(substream, what, 0);
548 chip->image[CS4231_IFACE_CTRL] &= ~what;
549 }
550 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
551 chip->image[CS4231_IFACE_CTRL]);
552 spin_unlock_irqrestore(&chip->lock, flags);
553 break;
554 }
555 default:
556 result = -EINVAL;
557 break;
558 }
559
560 return result;
561 }
562
563 /*
564 * CODEC I/O
565 */
566
567 static unsigned char snd_cs4231_get_rate(unsigned int rate)
568 {
569 int i;
570
571 for (i = 0; i < 14; i++)
572 if (rate == rates[i])
573 return freq_bits[i];
574
575 return freq_bits[13];
576 }
577
578 static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, int format,
579 int channels)
580 {
581 unsigned char rformat;
582
583 rformat = CS4231_LINEAR_8;
584 switch (format) {
585 case SNDRV_PCM_FORMAT_MU_LAW:
586 rformat = CS4231_ULAW_8;
587 break;
588 case SNDRV_PCM_FORMAT_A_LAW:
589 rformat = CS4231_ALAW_8;
590 break;
591 case SNDRV_PCM_FORMAT_S16_LE:
592 rformat = CS4231_LINEAR_16;
593 break;
594 case SNDRV_PCM_FORMAT_S16_BE:
595 rformat = CS4231_LINEAR_16_BIG;
596 break;
597 case SNDRV_PCM_FORMAT_IMA_ADPCM:
598 rformat = CS4231_ADPCM_16;
599 break;
600 }
601 if (channels > 1)
602 rformat |= CS4231_STEREO;
603 return rformat;
604 }
605
606 static void snd_cs4231_calibrate_mute(struct snd_cs4231 *chip, int mute)
607 {
608 unsigned long flags;
609
610 mute = mute ? 1 : 0;
611 spin_lock_irqsave(&chip->lock, flags);
612 if (chip->calibrate_mute == mute) {
613 spin_unlock_irqrestore(&chip->lock, flags);
614 return;
615 }
616 if (!mute) {
617 snd_cs4231_dout(chip, CS4231_LEFT_INPUT,
618 chip->image[CS4231_LEFT_INPUT]);
619 snd_cs4231_dout(chip, CS4231_RIGHT_INPUT,
620 chip->image[CS4231_RIGHT_INPUT]);
621 snd_cs4231_dout(chip, CS4231_LOOPBACK,
622 chip->image[CS4231_LOOPBACK]);
623 }
624 snd_cs4231_dout(chip, CS4231_AUX1_LEFT_INPUT,
625 mute ? 0x80 : chip->image[CS4231_AUX1_LEFT_INPUT]);
626 snd_cs4231_dout(chip, CS4231_AUX1_RIGHT_INPUT,
627 mute ? 0x80 : chip->image[CS4231_AUX1_RIGHT_INPUT]);
628 snd_cs4231_dout(chip, CS4231_AUX2_LEFT_INPUT,
629 mute ? 0x80 : chip->image[CS4231_AUX2_LEFT_INPUT]);
630 snd_cs4231_dout(chip, CS4231_AUX2_RIGHT_INPUT,
631 mute ? 0x80 : chip->image[CS4231_AUX2_RIGHT_INPUT]);
632 snd_cs4231_dout(chip, CS4231_LEFT_OUTPUT,
633 mute ? 0x80 : chip->image[CS4231_LEFT_OUTPUT]);
634 snd_cs4231_dout(chip, CS4231_RIGHT_OUTPUT,
635 mute ? 0x80 : chip->image[CS4231_RIGHT_OUTPUT]);
636 snd_cs4231_dout(chip, CS4231_LEFT_LINE_IN,
637 mute ? 0x80 : chip->image[CS4231_LEFT_LINE_IN]);
638 snd_cs4231_dout(chip, CS4231_RIGHT_LINE_IN,
639 mute ? 0x80 : chip->image[CS4231_RIGHT_LINE_IN]);
640 snd_cs4231_dout(chip, CS4231_MONO_CTRL,
641 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]);
642 chip->calibrate_mute = mute;
643 spin_unlock_irqrestore(&chip->lock, flags);
644 }
645
646 static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
647 struct snd_pcm_hw_params *params,
648 unsigned char pdfr)
649 {
650 unsigned long flags;
651
652 mutex_lock(&chip->mce_mutex);
653 snd_cs4231_calibrate_mute(chip, 1);
654
655 snd_cs4231_mce_up(chip);
656
657 spin_lock_irqsave(&chip->lock, flags);
658 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
659 (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) ?
660 (pdfr & 0xf0) | (chip->image[CS4231_REC_FORMAT] & 0x0f) :
661 pdfr);
662 spin_unlock_irqrestore(&chip->lock, flags);
663
664 snd_cs4231_mce_down(chip);
665
666 snd_cs4231_calibrate_mute(chip, 0);
667 mutex_unlock(&chip->mce_mutex);
668 }
669
670 static void snd_cs4231_capture_format(struct snd_cs4231 *chip,
671 struct snd_pcm_hw_params *params,
672 unsigned char cdfr)
673 {
674 unsigned long flags;
675
676 mutex_lock(&chip->mce_mutex);
677 snd_cs4231_calibrate_mute(chip, 1);
678
679 snd_cs4231_mce_up(chip);
680
681 spin_lock_irqsave(&chip->lock, flags);
682 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) {
683 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
684 ((chip->image[CS4231_PLAYBK_FORMAT]) & 0xf0) |
685 (cdfr & 0x0f));
686 spin_unlock_irqrestore(&chip->lock, flags);
687 snd_cs4231_mce_down(chip);
688 snd_cs4231_mce_up(chip);
689 spin_lock_irqsave(&chip->lock, flags);
690 }
691 snd_cs4231_out(chip, CS4231_REC_FORMAT, cdfr);
692 spin_unlock_irqrestore(&chip->lock, flags);
693
694 snd_cs4231_mce_down(chip);
695
696 snd_cs4231_calibrate_mute(chip, 0);
697 mutex_unlock(&chip->mce_mutex);
698 }
699
700 /*
701 * Timer interface
702 */
703
704 static unsigned long snd_cs4231_timer_resolution(struct snd_timer *timer)
705 {
706 struct snd_cs4231 *chip = snd_timer_chip(timer);
707
708 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920;
709 }
710
711 static int snd_cs4231_timer_start(struct snd_timer *timer)
712 {
713 unsigned long flags;
714 unsigned int ticks;
715 struct snd_cs4231 *chip = snd_timer_chip(timer);
716
717 spin_lock_irqsave(&chip->lock, flags);
718 ticks = timer->sticks;
719 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 ||
720 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] ||
721 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) {
722 snd_cs4231_out(chip, CS4231_TIMER_HIGH,
723 chip->image[CS4231_TIMER_HIGH] =
724 (unsigned char) (ticks >> 8));
725 snd_cs4231_out(chip, CS4231_TIMER_LOW,
726 chip->image[CS4231_TIMER_LOW] =
727 (unsigned char) ticks);
728 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
729 chip->image[CS4231_ALT_FEATURE_1] |
730 CS4231_TIMER_ENABLE);
731 }
732 spin_unlock_irqrestore(&chip->lock, flags);
733
734 return 0;
735 }
736
737 static int snd_cs4231_timer_stop(struct snd_timer *timer)
738 {
739 unsigned long flags;
740 struct snd_cs4231 *chip = snd_timer_chip(timer);
741
742 spin_lock_irqsave(&chip->lock, flags);
743 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE;
744 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
745 chip->image[CS4231_ALT_FEATURE_1]);
746 spin_unlock_irqrestore(&chip->lock, flags);
747
748 return 0;
749 }
750
751 static void __init snd_cs4231_init(struct snd_cs4231 *chip)
752 {
753 unsigned long flags;
754
755 snd_cs4231_mce_down(chip);
756
757 #ifdef SNDRV_DEBUG_MCE
758 snd_printdd("init: (1)\n");
759 #endif
760 snd_cs4231_mce_up(chip);
761 spin_lock_irqsave(&chip->lock, flags);
762 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
763 CS4231_PLAYBACK_PIO |
764 CS4231_RECORD_ENABLE |
765 CS4231_RECORD_PIO |
766 CS4231_CALIB_MODE);
767 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB;
768 snd_cs4231_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]);
769 spin_unlock_irqrestore(&chip->lock, flags);
770 snd_cs4231_mce_down(chip);
771
772 #ifdef SNDRV_DEBUG_MCE
773 snd_printdd("init: (2)\n");
774 #endif
775
776 snd_cs4231_mce_up(chip);
777 spin_lock_irqsave(&chip->lock, flags);
778 snd_cs4231_out(chip, CS4231_ALT_FEATURE_1,
779 chip->image[CS4231_ALT_FEATURE_1]);
780 spin_unlock_irqrestore(&chip->lock, flags);
781 snd_cs4231_mce_down(chip);
782
783 #ifdef SNDRV_DEBUG_MCE
784 snd_printdd("init: (3) - afei = 0x%x\n",
785 chip->image[CS4231_ALT_FEATURE_1]);
786 #endif
787
788 spin_lock_irqsave(&chip->lock, flags);
789 snd_cs4231_out(chip, CS4231_ALT_FEATURE_2,
790 chip->image[CS4231_ALT_FEATURE_2]);
791 spin_unlock_irqrestore(&chip->lock, flags);
792
793 snd_cs4231_mce_up(chip);
794 spin_lock_irqsave(&chip->lock, flags);
795 snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT,
796 chip->image[CS4231_PLAYBK_FORMAT]);
797 spin_unlock_irqrestore(&chip->lock, flags);
798 snd_cs4231_mce_down(chip);
799
800 #ifdef SNDRV_DEBUG_MCE
801 snd_printdd("init: (4)\n");
802 #endif
803
804 snd_cs4231_mce_up(chip);
805 spin_lock_irqsave(&chip->lock, flags);
806 snd_cs4231_out(chip, CS4231_REC_FORMAT, chip->image[CS4231_REC_FORMAT]);
807 spin_unlock_irqrestore(&chip->lock, flags);
808 snd_cs4231_mce_down(chip);
809
810 #ifdef SNDRV_DEBUG_MCE
811 snd_printdd("init: (5)\n");
812 #endif
813 }
814
815 static int snd_cs4231_open(struct snd_cs4231 *chip, unsigned int mode)
816 {
817 unsigned long flags;
818
819 mutex_lock(&chip->open_mutex);
820 if ((chip->mode & mode)) {
821 mutex_unlock(&chip->open_mutex);
822 return -EAGAIN;
823 }
824 if (chip->mode & CS4231_MODE_OPEN) {
825 chip->mode |= mode;
826 mutex_unlock(&chip->open_mutex);
827 return 0;
828 }
829 /* ok. now enable and ack CODEC IRQ */
830 spin_lock_irqsave(&chip->lock, flags);
831 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
832 CS4231_RECORD_IRQ |
833 CS4231_TIMER_IRQ);
834 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
835 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
836 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
837
838 snd_cs4231_out(chip, CS4231_IRQ_STATUS, CS4231_PLAYBACK_IRQ |
839 CS4231_RECORD_IRQ |
840 CS4231_TIMER_IRQ);
841 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
842
843 spin_unlock_irqrestore(&chip->lock, flags);
844
845 chip->mode = mode;
846 mutex_unlock(&chip->open_mutex);
847 return 0;
848 }
849
850 static void snd_cs4231_close(struct snd_cs4231 *chip, unsigned int mode)
851 {
852 unsigned long flags;
853
854 mutex_lock(&chip->open_mutex);
855 chip->mode &= ~mode;
856 if (chip->mode & CS4231_MODE_OPEN) {
857 mutex_unlock(&chip->open_mutex);
858 return;
859 }
860 snd_cs4231_calibrate_mute(chip, 1);
861
862 /* disable IRQ */
863 spin_lock_irqsave(&chip->lock, flags);
864 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
865 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
866 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
867
868 /* now disable record & playback */
869
870 if (chip->image[CS4231_IFACE_CTRL] &
871 (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
872 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) {
873 spin_unlock_irqrestore(&chip->lock, flags);
874 snd_cs4231_mce_up(chip);
875 spin_lock_irqsave(&chip->lock, flags);
876 chip->image[CS4231_IFACE_CTRL] &=
877 ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO |
878 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO);
879 snd_cs4231_out(chip, CS4231_IFACE_CTRL,
880 chip->image[CS4231_IFACE_CTRL]);
881 spin_unlock_irqrestore(&chip->lock, flags);
882 snd_cs4231_mce_down(chip);
883 spin_lock_irqsave(&chip->lock, flags);
884 }
885
886 /* clear IRQ again */
887 snd_cs4231_out(chip, CS4231_IRQ_STATUS, 0);
888 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
889 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS)); /* clear IRQ */
890 spin_unlock_irqrestore(&chip->lock, flags);
891
892 snd_cs4231_calibrate_mute(chip, 0);
893
894 chip->mode = 0;
895 mutex_unlock(&chip->open_mutex);
896 }
897
898 /*
899 * timer open/close
900 */
901
902 static int snd_cs4231_timer_open(struct snd_timer *timer)
903 {
904 struct snd_cs4231 *chip = snd_timer_chip(timer);
905 snd_cs4231_open(chip, CS4231_MODE_TIMER);
906 return 0;
907 }
908
909 static int snd_cs4231_timer_close(struct snd_timer *timer)
910 {
911 struct snd_cs4231 *chip = snd_timer_chip(timer);
912 snd_cs4231_close(chip, CS4231_MODE_TIMER);
913 return 0;
914 }
915
916 static struct snd_timer_hardware snd_cs4231_timer_table = {
917 .flags = SNDRV_TIMER_HW_AUTO,
918 .resolution = 9945,
919 .ticks = 65535,
920 .open = snd_cs4231_timer_open,
921 .close = snd_cs4231_timer_close,
922 .c_resolution = snd_cs4231_timer_resolution,
923 .start = snd_cs4231_timer_start,
924 .stop = snd_cs4231_timer_stop,
925 };
926
927 /*
928 * ok.. exported functions..
929 */
930
931 static int snd_cs4231_playback_hw_params(struct snd_pcm_substream *substream,
932 struct snd_pcm_hw_params *hw_params)
933 {
934 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
935 unsigned char new_pdfr;
936 int err;
937
938 err = snd_pcm_lib_malloc_pages(substream,
939 params_buffer_bytes(hw_params));
940 if (err < 0)
941 return err;
942 new_pdfr = snd_cs4231_get_format(chip, params_format(hw_params),
943 params_channels(hw_params)) |
944 snd_cs4231_get_rate(params_rate(hw_params));
945 snd_cs4231_playback_format(chip, hw_params, new_pdfr);
946
947 return 0;
948 }
949
950 static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
951 {
952 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
953 struct snd_pcm_runtime *runtime = substream->runtime;
954 unsigned long flags;
955
956 spin_lock_irqsave(&chip->lock, flags);
957
958 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
959 CS4231_PLAYBACK_PIO);
960
961 BUG_ON(runtime->period_size > 0xffff + 1);
962
963 chip->p_periods_sent = 0;
964 spin_unlock_irqrestore(&chip->lock, flags);
965
966 return 0;
967 }
968
969 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
970 struct snd_pcm_hw_params *hw_params)
971 {
972 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
973 unsigned char new_cdfr;
974 int err;
975
976 err = snd_pcm_lib_malloc_pages(substream,
977 params_buffer_bytes(hw_params));
978 if (err < 0)
979 return err;
980 new_cdfr = snd_cs4231_get_format(chip, params_format(hw_params),
981 params_channels(hw_params)) |
982 snd_cs4231_get_rate(params_rate(hw_params));
983 snd_cs4231_capture_format(chip, hw_params, new_cdfr);
984
985 return 0;
986 }
987
988 static int snd_cs4231_capture_prepare(struct snd_pcm_substream *substream)
989 {
990 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
991 unsigned long flags;
992
993 spin_lock_irqsave(&chip->lock, flags);
994 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE |
995 CS4231_RECORD_PIO);
996
997
998 chip->c_periods_sent = 0;
999 spin_unlock_irqrestore(&chip->lock, flags);
1000
1001 return 0;
1002 }
1003
1004 static void snd_cs4231_overrange(struct snd_cs4231 *chip)
1005 {
1006 unsigned long flags;
1007 unsigned char res;
1008
1009 spin_lock_irqsave(&chip->lock, flags);
1010 res = snd_cs4231_in(chip, CS4231_TEST_INIT);
1011 spin_unlock_irqrestore(&chip->lock, flags);
1012
1013 /* detect overrange only above 0dB; may be user selectable? */
1014 if (res & (0x08 | 0x02))
1015 chip->capture_substream->runtime->overrange++;
1016 }
1017
1018 static void snd_cs4231_play_callback(struct snd_cs4231 *chip)
1019 {
1020 if (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE) {
1021 snd_pcm_period_elapsed(chip->playback_substream);
1022 snd_cs4231_advance_dma(&chip->p_dma, chip->playback_substream,
1023 &chip->p_periods_sent);
1024 }
1025 }
1026
1027 static void snd_cs4231_capture_callback(struct snd_cs4231 *chip)
1028 {
1029 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) {
1030 snd_pcm_period_elapsed(chip->capture_substream);
1031 snd_cs4231_advance_dma(&chip->c_dma, chip->capture_substream,
1032 &chip->c_periods_sent);
1033 }
1034 }
1035
1036 static snd_pcm_uframes_t snd_cs4231_playback_pointer(
1037 struct snd_pcm_substream *substream)
1038 {
1039 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1040 struct cs4231_dma_control *dma_cont = &chip->p_dma;
1041 size_t ptr;
1042
1043 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE))
1044 return 0;
1045 ptr = dma_cont->address(dma_cont);
1046 if (ptr != 0)
1047 ptr -= substream->runtime->dma_addr;
1048
1049 return bytes_to_frames(substream->runtime, ptr);
1050 }
1051
1052 static snd_pcm_uframes_t snd_cs4231_capture_pointer(
1053 struct snd_pcm_substream *substream)
1054 {
1055 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1056 struct cs4231_dma_control *dma_cont = &chip->c_dma;
1057 size_t ptr;
1058
1059 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE))
1060 return 0;
1061 ptr = dma_cont->address(dma_cont);
1062 if (ptr != 0)
1063 ptr -= substream->runtime->dma_addr;
1064
1065 return bytes_to_frames(substream->runtime, ptr);
1066 }
1067
1068 static int __init snd_cs4231_probe(struct snd_cs4231 *chip)
1069 {
1070 unsigned long flags;
1071 int i;
1072 int id = 0;
1073 int vers = 0;
1074 unsigned char *ptr;
1075
1076 for (i = 0; i < 50; i++) {
1077 mb();
1078 if (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT)
1079 msleep(2);
1080 else {
1081 spin_lock_irqsave(&chip->lock, flags);
1082 snd_cs4231_out(chip, CS4231_MISC_INFO, CS4231_MODE2);
1083 id = snd_cs4231_in(chip, CS4231_MISC_INFO) & 0x0f;
1084 vers = snd_cs4231_in(chip, CS4231_VERSION);
1085 spin_unlock_irqrestore(&chip->lock, flags);
1086 if (id == 0x0a)
1087 break; /* this is valid value */
1088 }
1089 }
1090 snd_printdd("cs4231: port = %p, id = 0x%x\n", chip->port, id);
1091 if (id != 0x0a)
1092 return -ENODEV; /* no valid device found */
1093
1094 spin_lock_irqsave(&chip->lock, flags);
1095
1096 /* clear any pendings IRQ */
1097 __cs4231_readb(chip, CS4231U(chip, STATUS));
1098 __cs4231_writeb(chip, 0, CS4231U(chip, STATUS));
1099 mb();
1100
1101 spin_unlock_irqrestore(&chip->lock, flags);
1102
1103 chip->image[CS4231_MISC_INFO] = CS4231_MODE2;
1104 chip->image[CS4231_IFACE_CTRL] =
1105 chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA;
1106 chip->image[CS4231_ALT_FEATURE_1] = 0x80;
1107 chip->image[CS4231_ALT_FEATURE_2] = 0x01;
1108 if (vers & 0x20)
1109 chip->image[CS4231_ALT_FEATURE_2] |= 0x02;
1110
1111 ptr = (unsigned char *) &chip->image;
1112
1113 snd_cs4231_mce_down(chip);
1114
1115 spin_lock_irqsave(&chip->lock, flags);
1116
1117 for (i = 0; i < 32; i++) /* ok.. fill all CS4231 registers */
1118 snd_cs4231_out(chip, i, *ptr++);
1119
1120 spin_unlock_irqrestore(&chip->lock, flags);
1121
1122 snd_cs4231_mce_up(chip);
1123
1124 snd_cs4231_mce_down(chip);
1125
1126 mdelay(2);
1127
1128 return 0; /* all things are ok.. */
1129 }
1130
1131 static struct snd_pcm_hardware snd_cs4231_playback = {
1132 .info = SNDRV_PCM_INFO_MMAP |
1133 SNDRV_PCM_INFO_INTERLEAVED |
1134 SNDRV_PCM_INFO_MMAP_VALID |
1135 SNDRV_PCM_INFO_SYNC_START,
1136 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1137 SNDRV_PCM_FMTBIT_A_LAW |
1138 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1139 SNDRV_PCM_FMTBIT_U8 |
1140 SNDRV_PCM_FMTBIT_S16_LE |
1141 SNDRV_PCM_FMTBIT_S16_BE,
1142 .rates = SNDRV_PCM_RATE_KNOT |
1143 SNDRV_PCM_RATE_8000_48000,
1144 .rate_min = 5510,
1145 .rate_max = 48000,
1146 .channels_min = 1,
1147 .channels_max = 2,
1148 .buffer_bytes_max = 32 * 1024,
1149 .period_bytes_min = 64,
1150 .period_bytes_max = 32 * 1024,
1151 .periods_min = 1,
1152 .periods_max = 1024,
1153 };
1154
1155 static struct snd_pcm_hardware snd_cs4231_capture = {
1156 .info = SNDRV_PCM_INFO_MMAP |
1157 SNDRV_PCM_INFO_INTERLEAVED |
1158 SNDRV_PCM_INFO_MMAP_VALID |
1159 SNDRV_PCM_INFO_SYNC_START,
1160 .formats = SNDRV_PCM_FMTBIT_MU_LAW |
1161 SNDRV_PCM_FMTBIT_A_LAW |
1162 SNDRV_PCM_FMTBIT_IMA_ADPCM |
1163 SNDRV_PCM_FMTBIT_U8 |
1164 SNDRV_PCM_FMTBIT_S16_LE |
1165 SNDRV_PCM_FMTBIT_S16_BE,
1166 .rates = SNDRV_PCM_RATE_KNOT |
1167 SNDRV_PCM_RATE_8000_48000,
1168 .rate_min = 5510,
1169 .rate_max = 48000,
1170 .channels_min = 1,
1171 .channels_max = 2,
1172 .buffer_bytes_max = 32 * 1024,
1173 .period_bytes_min = 64,
1174 .period_bytes_max = 32 * 1024,
1175 .periods_min = 1,
1176 .periods_max = 1024,
1177 };
1178
1179 static int snd_cs4231_playback_open(struct snd_pcm_substream *substream)
1180 {
1181 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1182 struct snd_pcm_runtime *runtime = substream->runtime;
1183 int err;
1184
1185 runtime->hw = snd_cs4231_playback;
1186
1187 err = snd_cs4231_open(chip, CS4231_MODE_PLAY);
1188 if (err < 0) {
1189 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1190 return err;
1191 }
1192 chip->playback_substream = substream;
1193 chip->p_periods_sent = 0;
1194 snd_pcm_set_sync(substream);
1195 snd_cs4231_xrate(runtime);
1196
1197 return 0;
1198 }
1199
1200 static int snd_cs4231_capture_open(struct snd_pcm_substream *substream)
1201 {
1202 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1203 struct snd_pcm_runtime *runtime = substream->runtime;
1204 int err;
1205
1206 runtime->hw = snd_cs4231_capture;
1207
1208 err = snd_cs4231_open(chip, CS4231_MODE_RECORD);
1209 if (err < 0) {
1210 snd_free_pages(runtime->dma_area, runtime->dma_bytes);
1211 return err;
1212 }
1213 chip->capture_substream = substream;
1214 chip->c_periods_sent = 0;
1215 snd_pcm_set_sync(substream);
1216 snd_cs4231_xrate(runtime);
1217
1218 return 0;
1219 }
1220
1221 static int snd_cs4231_playback_close(struct snd_pcm_substream *substream)
1222 {
1223 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1224
1225 snd_cs4231_close(chip, CS4231_MODE_PLAY);
1226 chip->playback_substream = NULL;
1227
1228 return 0;
1229 }
1230
1231 static int snd_cs4231_capture_close(struct snd_pcm_substream *substream)
1232 {
1233 struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
1234
1235 snd_cs4231_close(chip, CS4231_MODE_RECORD);
1236 chip->capture_substream = NULL;
1237
1238 return 0;
1239 }
1240
1241 /* XXX We can do some power-management, in particular on EBUS using
1242 * XXX the audio AUXIO register...
1243 */
1244
1245 static struct snd_pcm_ops snd_cs4231_playback_ops = {
1246 .open = snd_cs4231_playback_open,
1247 .close = snd_cs4231_playback_close,
1248 .ioctl = snd_pcm_lib_ioctl,
1249 .hw_params = snd_cs4231_playback_hw_params,
1250 .hw_free = snd_pcm_lib_free_pages,
1251 .prepare = snd_cs4231_playback_prepare,
1252 .trigger = snd_cs4231_trigger,
1253 .pointer = snd_cs4231_playback_pointer,
1254 };
1255
1256 static struct snd_pcm_ops snd_cs4231_capture_ops = {
1257 .open = snd_cs4231_capture_open,
1258 .close = snd_cs4231_capture_close,
1259 .ioctl = snd_pcm_lib_ioctl,
1260 .hw_params = snd_cs4231_capture_hw_params,
1261 .hw_free = snd_pcm_lib_free_pages,
1262 .prepare = snd_cs4231_capture_prepare,
1263 .trigger = snd_cs4231_trigger,
1264 .pointer = snd_cs4231_capture_pointer,
1265 };
1266
1267 static int __init snd_cs4231_pcm(struct snd_card *card)
1268 {
1269 struct snd_cs4231 *chip = card->private_data;
1270 struct snd_pcm *pcm;
1271 int err;
1272
1273 err = snd_pcm_new(card, "CS4231", 0, 1, 1, &pcm);
1274 if (err < 0)
1275 return err;
1276
1277 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1278 &snd_cs4231_playback_ops);
1279 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1280 &snd_cs4231_capture_ops);
1281
1282 /* global setup */
1283 pcm->private_data = chip;
1284 pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
1285 strcpy(pcm->name, "CS4231");
1286
1287 chip->p_dma.preallocate(chip, pcm);
1288
1289 chip->pcm = pcm;
1290
1291 return 0;
1292 }
1293
1294 static int __init snd_cs4231_timer(struct snd_card *card)
1295 {
1296 struct snd_cs4231 *chip = card->private_data;
1297 struct snd_timer *timer;
1298 struct snd_timer_id tid;
1299 int err;
1300
1301 /* Timer initialization */
1302 tid.dev_class = SNDRV_TIMER_CLASS_CARD;
1303 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE;
1304 tid.card = card->number;
1305 tid.device = 0;
1306 tid.subdevice = 0;
1307 err = snd_timer_new(card, "CS4231", &tid, &timer);
1308 if (err < 0)
1309 return err;
1310 strcpy(timer->name, "CS4231");
1311 timer->private_data = chip;
1312 timer->hw = snd_cs4231_timer_table;
1313 chip->timer = timer;
1314
1315 return 0;
1316 }
1317
1318 /*
1319 * MIXER part
1320 */
1321
1322 static int snd_cs4231_info_mux(struct snd_kcontrol *kcontrol,
1323 struct snd_ctl_elem_info *uinfo)
1324 {
1325 static char *texts[4] = {
1326 "Line", "CD", "Mic", "Mix"
1327 };
1328
1329 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1330 uinfo->count = 2;
1331 uinfo->value.enumerated.items = 4;
1332 if (uinfo->value.enumerated.item > 3)
1333 uinfo->value.enumerated.item = 3;
1334 strcpy(uinfo->value.enumerated.name,
1335 texts[uinfo->value.enumerated.item]);
1336
1337 return 0;
1338 }
1339
1340 static int snd_cs4231_get_mux(struct snd_kcontrol *kcontrol,
1341 struct snd_ctl_elem_value *ucontrol)
1342 {
1343 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1344 unsigned long flags;
1345
1346 spin_lock_irqsave(&chip->lock, flags);
1347 ucontrol->value.enumerated.item[0] =
1348 (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6;
1349 ucontrol->value.enumerated.item[1] =
1350 (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6;
1351 spin_unlock_irqrestore(&chip->lock, flags);
1352
1353 return 0;
1354 }
1355
1356 static int snd_cs4231_put_mux(struct snd_kcontrol *kcontrol,
1357 struct snd_ctl_elem_value *ucontrol)
1358 {
1359 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1360 unsigned long flags;
1361 unsigned short left, right;
1362 int change;
1363
1364 if (ucontrol->value.enumerated.item[0] > 3 ||
1365 ucontrol->value.enumerated.item[1] > 3)
1366 return -EINVAL;
1367 left = ucontrol->value.enumerated.item[0] << 6;
1368 right = ucontrol->value.enumerated.item[1] << 6;
1369
1370 spin_lock_irqsave(&chip->lock, flags);
1371
1372 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left;
1373 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right;
1374 change = left != chip->image[CS4231_LEFT_INPUT] ||
1375 right != chip->image[CS4231_RIGHT_INPUT];
1376 snd_cs4231_out(chip, CS4231_LEFT_INPUT, left);
1377 snd_cs4231_out(chip, CS4231_RIGHT_INPUT, right);
1378
1379 spin_unlock_irqrestore(&chip->lock, flags);
1380
1381 return change;
1382 }
1383
1384 static int snd_cs4231_info_single(struct snd_kcontrol *kcontrol,
1385 struct snd_ctl_elem_info *uinfo)
1386 {
1387 int mask = (kcontrol->private_value >> 16) & 0xff;
1388
1389 uinfo->type = (mask == 1) ?
1390 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1391 uinfo->count = 1;
1392 uinfo->value.integer.min = 0;
1393 uinfo->value.integer.max = mask;
1394
1395 return 0;
1396 }
1397
1398 static int snd_cs4231_get_single(struct snd_kcontrol *kcontrol,
1399 struct snd_ctl_elem_value *ucontrol)
1400 {
1401 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1402 unsigned long flags;
1403 int reg = kcontrol->private_value & 0xff;
1404 int shift = (kcontrol->private_value >> 8) & 0xff;
1405 int mask = (kcontrol->private_value >> 16) & 0xff;
1406 int invert = (kcontrol->private_value >> 24) & 0xff;
1407
1408 spin_lock_irqsave(&chip->lock, flags);
1409
1410 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
1411
1412 spin_unlock_irqrestore(&chip->lock, flags);
1413
1414 if (invert)
1415 ucontrol->value.integer.value[0] =
1416 (mask - ucontrol->value.integer.value[0]);
1417
1418 return 0;
1419 }
1420
1421 static int snd_cs4231_put_single(struct snd_kcontrol *kcontrol,
1422 struct snd_ctl_elem_value *ucontrol)
1423 {
1424 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1425 unsigned long flags;
1426 int reg = kcontrol->private_value & 0xff;
1427 int shift = (kcontrol->private_value >> 8) & 0xff;
1428 int mask = (kcontrol->private_value >> 16) & 0xff;
1429 int invert = (kcontrol->private_value >> 24) & 0xff;
1430 int change;
1431 unsigned short val;
1432
1433 val = (ucontrol->value.integer.value[0] & mask);
1434 if (invert)
1435 val = mask - val;
1436 val <<= shift;
1437
1438 spin_lock_irqsave(&chip->lock, flags);
1439
1440 val = (chip->image[reg] & ~(mask << shift)) | val;
1441 change = val != chip->image[reg];
1442 snd_cs4231_out(chip, reg, val);
1443
1444 spin_unlock_irqrestore(&chip->lock, flags);
1445
1446 return change;
1447 }
1448
1449 static int snd_cs4231_info_double(struct snd_kcontrol *kcontrol,
1450 struct snd_ctl_elem_info *uinfo)
1451 {
1452 int mask = (kcontrol->private_value >> 24) & 0xff;
1453
1454 uinfo->type = mask == 1 ?
1455 SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
1456 uinfo->count = 2;
1457 uinfo->value.integer.min = 0;
1458 uinfo->value.integer.max = mask;
1459
1460 return 0;
1461 }
1462
1463 static int snd_cs4231_get_double(struct snd_kcontrol *kcontrol,
1464 struct snd_ctl_elem_value *ucontrol)
1465 {
1466 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1467 unsigned long flags;
1468 int left_reg = kcontrol->private_value & 0xff;
1469 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1470 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1471 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1472 int mask = (kcontrol->private_value >> 24) & 0xff;
1473 int invert = (kcontrol->private_value >> 22) & 1;
1474
1475 spin_lock_irqsave(&chip->lock, flags);
1476
1477 ucontrol->value.integer.value[0] =
1478 (chip->image[left_reg] >> shift_left) & mask;
1479 ucontrol->value.integer.value[1] =
1480 (chip->image[right_reg] >> shift_right) & mask;
1481
1482 spin_unlock_irqrestore(&chip->lock, flags);
1483
1484 if (invert) {
1485 ucontrol->value.integer.value[0] =
1486 (mask - ucontrol->value.integer.value[0]);
1487 ucontrol->value.integer.value[1] =
1488 (mask - ucontrol->value.integer.value[1]);
1489 }
1490
1491 return 0;
1492 }
1493
1494 static int snd_cs4231_put_double(struct snd_kcontrol *kcontrol,
1495 struct snd_ctl_elem_value *ucontrol)
1496 {
1497 struct snd_cs4231 *chip = snd_kcontrol_chip(kcontrol);
1498 unsigned long flags;
1499 int left_reg = kcontrol->private_value & 0xff;
1500 int right_reg = (kcontrol->private_value >> 8) & 0xff;
1501 int shift_left = (kcontrol->private_value >> 16) & 0x07;
1502 int shift_right = (kcontrol->private_value >> 19) & 0x07;
1503 int mask = (kcontrol->private_value >> 24) & 0xff;
1504 int invert = (kcontrol->private_value >> 22) & 1;
1505 int change;
1506 unsigned short val1, val2;
1507
1508 val1 = ucontrol->value.integer.value[0] & mask;
1509 val2 = ucontrol->value.integer.value[1] & mask;
1510 if (invert) {
1511 val1 = mask - val1;
1512 val2 = mask - val2;
1513 }
1514 val1 <<= shift_left;
1515 val2 <<= shift_right;
1516
1517 spin_lock_irqsave(&chip->lock, flags);
1518
1519 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
1520 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
1521 change = val1 != chip->image[left_reg];
1522 change |= val2 != chip->image[right_reg];
1523 snd_cs4231_out(chip, left_reg, val1);
1524 snd_cs4231_out(chip, right_reg, val2);
1525
1526 spin_unlock_irqrestore(&chip->lock, flags);
1527
1528 return change;
1529 }
1530
1531 #define CS4231_SINGLE(xname, xindex, reg, shift, mask, invert) \
1532 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1533 .info = snd_cs4231_info_single, \
1534 .get = snd_cs4231_get_single, .put = snd_cs4231_put_single, \
1535 .private_value = (reg) | ((shift) << 8) | ((mask) << 16) | ((invert) << 24) }
1536
1537 #define CS4231_DOUBLE(xname, xindex, left_reg, right_reg, shift_left, \
1538 shift_right, mask, invert) \
1539 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), .index = (xindex), \
1540 .info = snd_cs4231_info_double, \
1541 .get = snd_cs4231_get_double, .put = snd_cs4231_put_double, \
1542 .private_value = (left_reg) | ((right_reg) << 8) | ((shift_left) << 16) | \
1543 ((shift_right) << 19) | ((mask) << 24) | ((invert) << 22) }
1544
1545 static struct snd_kcontrol_new snd_cs4231_controls[] __initdata = {
1546 CS4231_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT,
1547 CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
1548 CS4231_DOUBLE("PCM Playback Volume", 0, CS4231_LEFT_OUTPUT,
1549 CS4231_RIGHT_OUTPUT, 0, 0, 63, 1),
1550 CS4231_DOUBLE("Line Playback Switch", 0, CS4231_LEFT_LINE_IN,
1551 CS4231_RIGHT_LINE_IN, 7, 7, 1, 1),
1552 CS4231_DOUBLE("Line Playback Volume", 0, CS4231_LEFT_LINE_IN,
1553 CS4231_RIGHT_LINE_IN, 0, 0, 31, 1),
1554 CS4231_DOUBLE("Aux Playback Switch", 0, CS4231_AUX1_LEFT_INPUT,
1555 CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
1556 CS4231_DOUBLE("Aux Playback Volume", 0, CS4231_AUX1_LEFT_INPUT,
1557 CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1),
1558 CS4231_DOUBLE("Aux Playback Switch", 1, CS4231_AUX2_LEFT_INPUT,
1559 CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
1560 CS4231_DOUBLE("Aux Playback Volume", 1, CS4231_AUX2_LEFT_INPUT,
1561 CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1),
1562 CS4231_SINGLE("Mono Playback Switch", 0, CS4231_MONO_CTRL, 7, 1, 1),
1563 CS4231_SINGLE("Mono Playback Volume", 0, CS4231_MONO_CTRL, 0, 15, 1),
1564 CS4231_SINGLE("Mono Output Playback Switch", 0, CS4231_MONO_CTRL, 6, 1, 1),
1565 CS4231_SINGLE("Mono Output Playback Bypass", 0, CS4231_MONO_CTRL, 5, 1, 0),
1566 CS4231_DOUBLE("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 0, 0,
1567 15, 0),
1568 {
1569 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1570 .name = "Capture Source",
1571 .info = snd_cs4231_info_mux,
1572 .get = snd_cs4231_get_mux,
1573 .put = snd_cs4231_put_mux,
1574 },
1575 CS4231_DOUBLE("Mic Boost", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5,
1576 1, 0),
1577 CS4231_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
1578 CS4231_SINGLE("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1),
1579 /* SPARC specific uses of XCTL{0,1} general purpose outputs. */
1580 CS4231_SINGLE("Line Out Switch", 0, CS4231_PIN_CTRL, 6, 1, 1),
1581 CS4231_SINGLE("Headphone Out Switch", 0, CS4231_PIN_CTRL, 7, 1, 1)
1582 };
1583
1584 static int __init snd_cs4231_mixer(struct snd_card *card)
1585 {
1586 struct snd_cs4231 *chip = card->private_data;
1587 int err, idx;
1588
1589 snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
1590
1591 strcpy(card->mixername, chip->pcm->name);
1592
1593 for (idx = 0; idx < ARRAY_SIZE(snd_cs4231_controls); idx++) {
1594 err = snd_ctl_add(card,
1595 snd_ctl_new1(&snd_cs4231_controls[idx], chip));
1596 if (err < 0)
1597 return err;
1598 }
1599 return 0;
1600 }
1601
1602 static int dev;
1603
1604 static int __init cs4231_attach_begin(struct snd_card **rcard)
1605 {
1606 struct snd_card *card;
1607 struct snd_cs4231 *chip;
1608
1609 *rcard = NULL;
1610
1611 if (dev >= SNDRV_CARDS)
1612 return -ENODEV;
1613
1614 if (!enable[dev]) {
1615 dev++;
1616 return -ENOENT;
1617 }
1618
1619 card = snd_card_new(index[dev], id[dev], THIS_MODULE,
1620 sizeof(struct snd_cs4231));
1621 if (card == NULL)
1622 return -ENOMEM;
1623
1624 strcpy(card->driver, "CS4231");
1625 strcpy(card->shortname, "Sun CS4231");
1626
1627 chip = card->private_data;
1628 chip->card = card;
1629
1630 *rcard = card;
1631 return 0;
1632 }
1633
1634 static int __init cs4231_attach_finish(struct snd_card *card)
1635 {
1636 struct snd_cs4231 *chip = card->private_data;
1637 int err;
1638
1639 err = snd_cs4231_pcm(card);
1640 if (err < 0)
1641 goto out_err;
1642
1643 err = snd_cs4231_mixer(card);
1644 if (err < 0)
1645 goto out_err;
1646
1647 err = snd_cs4231_timer(card);
1648 if (err < 0)
1649 goto out_err;
1650
1651 err = snd_card_register(card);
1652 if (err < 0)
1653 goto out_err;
1654
1655 chip->next = cs4231_list;
1656 cs4231_list = chip;
1657
1658 dev++;
1659 return 0;
1660
1661 out_err:
1662 snd_card_free(card);
1663 return err;
1664 }
1665
1666 #ifdef SBUS_SUPPORT
1667
1668 static irqreturn_t snd_cs4231_sbus_interrupt(int irq, void *dev_id)
1669 {
1670 unsigned long flags;
1671 unsigned char status;
1672 u32 csr;
1673 struct snd_cs4231 *chip = dev_id;
1674
1675 /*This is IRQ is not raised by the cs4231*/
1676 if (!(__cs4231_readb(chip, CS4231U(chip, STATUS)) & CS4231_GLOBALIRQ))
1677 return IRQ_NONE;
1678
1679 /* ACK the APC interrupt. */
1680 csr = sbus_readl(chip->port + APCCSR);
1681
1682 sbus_writel(csr, chip->port + APCCSR);
1683
1684 if ((csr & APC_PDMA_READY) &&
1685 (csr & APC_PLAY_INT) &&
1686 (csr & APC_XINT_PNVA) &&
1687 !(csr & APC_XINT_EMPT))
1688 snd_cs4231_play_callback(chip);
1689
1690 if ((csr & APC_CDMA_READY) &&
1691 (csr & APC_CAPT_INT) &&
1692 (csr & APC_XINT_CNVA) &&
1693 !(csr & APC_XINT_EMPT))
1694 snd_cs4231_capture_callback(chip);
1695
1696 status = snd_cs4231_in(chip, CS4231_IRQ_STATUS);
1697
1698 if (status & CS4231_TIMER_IRQ) {
1699 if (chip->timer)
1700 snd_timer_interrupt(chip->timer, chip->timer->sticks);
1701 }
1702
1703 if ((status & CS4231_RECORD_IRQ) && (csr & APC_CDMA_READY))
1704 snd_cs4231_overrange(chip);
1705
1706 /* ACK the CS4231 interrupt. */
1707 spin_lock_irqsave(&chip->lock, flags);
1708 snd_cs4231_outm(chip, CS4231_IRQ_STATUS, ~CS4231_ALL_IRQS | ~status, 0);
1709 spin_unlock_irqrestore(&chip->lock, flags);
1710
1711 return IRQ_HANDLED;
1712 }
1713
1714 /*
1715 * SBUS DMA routines
1716 */
1717
1718 static int sbus_dma_request(struct cs4231_dma_control *dma_cont,
1719 dma_addr_t bus_addr, size_t len)
1720 {
1721 unsigned long flags;
1722 u32 test, csr;
1723 int err;
1724 struct sbus_dma_info *base = &dma_cont->sbus_info;
1725
1726 if (len >= (1 << 24))
1727 return -EINVAL;
1728 spin_lock_irqsave(&base->lock, flags);
1729 csr = sbus_readl(base->regs + APCCSR);
1730 err = -EINVAL;
1731 test = APC_CDMA_READY;
1732 if (base->dir == APC_PLAY)
1733 test = APC_PDMA_READY;
1734 if (!(csr & test))
1735 goto out;
1736 err = -EBUSY;
1737 test = APC_XINT_CNVA;
1738 if (base->dir == APC_PLAY)
1739 test = APC_XINT_PNVA;
1740 if (!(csr & test))
1741 goto out;
1742 err = 0;
1743 sbus_writel(bus_addr, base->regs + base->dir + APCNVA);
1744 sbus_writel(len, base->regs + base->dir + APCNC);
1745 out:
1746 spin_unlock_irqrestore(&base->lock, flags);
1747 return err;
1748 }
1749
1750 static void sbus_dma_prepare(struct cs4231_dma_control *dma_cont, int d)
1751 {
1752 unsigned long flags;
1753 u32 csr, test;
1754 struct sbus_dma_info *base = &dma_cont->sbus_info;
1755
1756 spin_lock_irqsave(&base->lock, flags);
1757 csr = sbus_readl(base->regs + APCCSR);
1758 test = APC_GENL_INT | APC_PLAY_INT | APC_XINT_ENA |
1759 APC_XINT_PLAY | APC_XINT_PEMP | APC_XINT_GENL |
1760 APC_XINT_PENA;
1761 if (base->dir == APC_RECORD)
1762 test = APC_GENL_INT | APC_CAPT_INT | APC_XINT_ENA |
1763 APC_XINT_CAPT | APC_XINT_CEMP | APC_XINT_GENL;
1764 csr |= test;
1765 sbus_writel(csr, base->regs + APCCSR);
1766 spin_unlock_irqrestore(&base->lock, flags);
1767 }
1768
1769 static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1770 {
1771 unsigned long flags;
1772 u32 csr, shift;
1773 struct sbus_dma_info *base = &dma_cont->sbus_info;
1774
1775 spin_lock_irqsave(&base->lock, flags);
1776 if (!on) {
1777 sbus_writel(0, base->regs + base->dir + APCNC);
1778 sbus_writel(0, base->regs + base->dir + APCNVA);
1779 if (base->dir == APC_PLAY) {
1780 sbus_writel(0, base->regs + base->dir + APCC);
1781 sbus_writel(0, base->regs + base->dir + APCVA);
1782 }
1783
1784 udelay(1200);
1785 }
1786 csr = sbus_readl(base->regs + APCCSR);
1787 shift = 0;
1788 if (base->dir == APC_PLAY)
1789 shift = 1;
1790 if (on)
1791 csr &= ~(APC_CPAUSE << shift);
1792 else
1793 csr |= (APC_CPAUSE << shift);
1794 sbus_writel(csr, base->regs + APCCSR);
1795 if (on)
1796 csr |= (APC_CDMA_READY << shift);
1797 else
1798 csr &= ~(APC_CDMA_READY << shift);
1799 sbus_writel(csr, base->regs + APCCSR);
1800
1801 spin_unlock_irqrestore(&base->lock, flags);
1802 }
1803
1804 static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
1805 {
1806 struct sbus_dma_info *base = &dma_cont->sbus_info;
1807
1808 return sbus_readl(base->regs + base->dir + APCVA);
1809 }
1810
1811 static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
1812 {
1813 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
1814 snd_dma_sbus_data(chip->dev_u.sdev),
1815 64 * 1024, 128 * 1024);
1816 }
1817
1818 /*
1819 * Init and exit routines
1820 */
1821
1822 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
1823 {
1824 if (chip->irq[0])
1825 free_irq(chip->irq[0], chip);
1826
1827 if (chip->port)
1828 sbus_iounmap(chip->port, chip->regs_size);
1829
1830 return 0;
1831 }
1832
1833 static int snd_cs4231_sbus_dev_free(struct snd_device *device)
1834 {
1835 struct snd_cs4231 *cp = device->device_data;
1836
1837 return snd_cs4231_sbus_free(cp);
1838 }
1839
1840 static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
1841 .dev_free = snd_cs4231_sbus_dev_free,
1842 };
1843
1844 static int __init snd_cs4231_sbus_create(struct snd_card *card,
1845 struct sbus_dev *sdev,
1846 int dev)
1847 {
1848 struct snd_cs4231 *chip = card->private_data;
1849 int err;
1850
1851 spin_lock_init(&chip->lock);
1852 spin_lock_init(&chip->c_dma.sbus_info.lock);
1853 spin_lock_init(&chip->p_dma.sbus_info.lock);
1854 mutex_init(&chip->mce_mutex);
1855 mutex_init(&chip->open_mutex);
1856 chip->dev_u.sdev = sdev;
1857 chip->regs_size = sdev->reg_addrs[0].reg_size;
1858 memcpy(&chip->image, &snd_cs4231_original_image,
1859 sizeof(snd_cs4231_original_image));
1860
1861 chip->port = sbus_ioremap(&sdev->resource[0], 0,
1862 chip->regs_size, "cs4231");
1863 if (!chip->port) {
1864 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
1865 return -EIO;
1866 }
1867
1868 chip->c_dma.sbus_info.regs = chip->port;
1869 chip->p_dma.sbus_info.regs = chip->port;
1870 chip->c_dma.sbus_info.dir = APC_RECORD;
1871 chip->p_dma.sbus_info.dir = APC_PLAY;
1872
1873 chip->p_dma.prepare = sbus_dma_prepare;
1874 chip->p_dma.enable = sbus_dma_enable;
1875 chip->p_dma.request = sbus_dma_request;
1876 chip->p_dma.address = sbus_dma_addr;
1877 chip->p_dma.preallocate = sbus_dma_preallocate;
1878
1879 chip->c_dma.prepare = sbus_dma_prepare;
1880 chip->c_dma.enable = sbus_dma_enable;
1881 chip->c_dma.request = sbus_dma_request;
1882 chip->c_dma.address = sbus_dma_addr;
1883 chip->c_dma.preallocate = sbus_dma_preallocate;
1884
1885 if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
1886 IRQF_SHARED, "cs4231", chip)) {
1887 snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
1888 dev, sdev->irqs[0]);
1889 snd_cs4231_sbus_free(chip);
1890 return -EBUSY;
1891 }
1892 chip->irq[0] = sdev->irqs[0];
1893
1894 if (snd_cs4231_probe(chip) < 0) {
1895 snd_cs4231_sbus_free(chip);
1896 return -ENODEV;
1897 }
1898 snd_cs4231_init(chip);
1899
1900 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
1901 chip, &snd_cs4231_sbus_dev_ops)) < 0) {
1902 snd_cs4231_sbus_free(chip);
1903 return err;
1904 }
1905
1906 return 0;
1907 }
1908
1909 static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
1910 {
1911 struct resource *rp = &sdev->resource[0];
1912 struct snd_card *card;
1913 int err;
1914
1915 err = cs4231_attach_begin(&card);
1916 if (err)
1917 return err;
1918
1919 sprintf(card->longname, "%s at 0x%02lx:0x%016Lx, irq %d",
1920 card->shortname,
1921 rp->flags & 0xffL,
1922 (unsigned long long)rp->start,
1923 sdev->irqs[0]);
1924
1925 err = snd_cs4231_sbus_create(card, sdev, dev);
1926 if (err < 0) {
1927 snd_card_free(card);
1928 return err;
1929 }
1930
1931 return cs4231_attach_finish(card);
1932 }
1933 #endif
1934
1935 #ifdef EBUS_SUPPORT
1936
1937 static void snd_cs4231_ebus_play_callback(struct ebus_dma_info *p, int event,
1938 void *cookie)
1939 {
1940 struct snd_cs4231 *chip = cookie;
1941
1942 snd_cs4231_play_callback(chip);
1943 }
1944
1945 static void snd_cs4231_ebus_capture_callback(struct ebus_dma_info *p,
1946 int event, void *cookie)
1947 {
1948 struct snd_cs4231 *chip = cookie;
1949
1950 snd_cs4231_capture_callback(chip);
1951 }
1952
1953 /*
1954 * EBUS DMA wrappers
1955 */
1956
1957 static int _ebus_dma_request(struct cs4231_dma_control *dma_cont,
1958 dma_addr_t bus_addr, size_t len)
1959 {
1960 return ebus_dma_request(&dma_cont->ebus_info, bus_addr, len);
1961 }
1962
1963 static void _ebus_dma_enable(struct cs4231_dma_control *dma_cont, int on)
1964 {
1965 ebus_dma_enable(&dma_cont->ebus_info, on);
1966 }
1967
1968 static void _ebus_dma_prepare(struct cs4231_dma_control *dma_cont, int dir)
1969 {
1970 ebus_dma_prepare(&dma_cont->ebus_info, dir);
1971 }
1972
1973 static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
1974 {
1975 return ebus_dma_addr(&dma_cont->ebus_info);
1976 }
1977
1978 static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
1979 {
1980 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
1981 snd_dma_pci_data(chip->dev_u.pdev),
1982 64*1024, 128*1024);
1983 }
1984
1985 /*
1986 * Init and exit routines
1987 */
1988
1989 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
1990 {
1991 if (chip->c_dma.ebus_info.regs) {
1992 ebus_dma_unregister(&chip->c_dma.ebus_info);
1993 iounmap(chip->c_dma.ebus_info.regs);
1994 }
1995 if (chip->p_dma.ebus_info.regs) {
1996 ebus_dma_unregister(&chip->p_dma.ebus_info);
1997 iounmap(chip->p_dma.ebus_info.regs);
1998 }
1999
2000 if (chip->port)
2001 iounmap(chip->port);
2002
2003 return 0;
2004 }
2005
2006 static int snd_cs4231_ebus_dev_free(struct snd_device *device)
2007 {
2008 struct snd_cs4231 *cp = device->device_data;
2009
2010 return snd_cs4231_ebus_free(cp);
2011 }
2012
2013 static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
2014 .dev_free = snd_cs4231_ebus_dev_free,
2015 };
2016
2017 static int __init snd_cs4231_ebus_create(struct snd_card *card,
2018 struct linux_ebus_device *edev,
2019 int dev)
2020 {
2021 struct snd_cs4231 *chip = card->private_data;
2022 int err;
2023
2024 spin_lock_init(&chip->lock);
2025 spin_lock_init(&chip->c_dma.ebus_info.lock);
2026 spin_lock_init(&chip->p_dma.ebus_info.lock);
2027 mutex_init(&chip->mce_mutex);
2028 mutex_init(&chip->open_mutex);
2029 chip->flags |= CS4231_FLAG_EBUS;
2030 chip->dev_u.pdev = edev->bus->self;
2031 memcpy(&chip->image, &snd_cs4231_original_image,
2032 sizeof(snd_cs4231_original_image));
2033 strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
2034 chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2035 chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
2036 chip->c_dma.ebus_info.client_cookie = chip;
2037 chip->c_dma.ebus_info.irq = edev->irqs[0];
2038 strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
2039 chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
2040 chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
2041 chip->p_dma.ebus_info.client_cookie = chip;
2042 chip->p_dma.ebus_info.irq = edev->irqs[1];
2043
2044 chip->p_dma.prepare = _ebus_dma_prepare;
2045 chip->p_dma.enable = _ebus_dma_enable;
2046 chip->p_dma.request = _ebus_dma_request;
2047 chip->p_dma.address = _ebus_dma_addr;
2048 chip->p_dma.preallocate = _ebus_dma_preallocate;
2049
2050 chip->c_dma.prepare = _ebus_dma_prepare;
2051 chip->c_dma.enable = _ebus_dma_enable;
2052 chip->c_dma.request = _ebus_dma_request;
2053 chip->c_dma.address = _ebus_dma_addr;
2054 chip->c_dma.preallocate = _ebus_dma_preallocate;
2055
2056 chip->port = ioremap(edev->resource[0].start, 0x10);
2057 chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10);
2058 chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10);
2059 if (!chip->port || !chip->p_dma.ebus_info.regs ||
2060 !chip->c_dma.ebus_info.regs) {
2061 snd_cs4231_ebus_free(chip);
2062 snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
2063 return -EIO;
2064 }
2065
2066 if (ebus_dma_register(&chip->c_dma.ebus_info)) {
2067 snd_cs4231_ebus_free(chip);
2068 snd_printdd("cs4231-%d: Unable to register EBUS capture DMA\n",
2069 dev);
2070 return -EBUSY;
2071 }
2072 if (ebus_dma_irq_enable(&chip->c_dma.ebus_info, 1)) {
2073 snd_cs4231_ebus_free(chip);
2074 snd_printdd("cs4231-%d: Unable to enable EBUS capture IRQ\n",
2075 dev);
2076 return -EBUSY;
2077 }
2078
2079 if (ebus_dma_register(&chip->p_dma.ebus_info)) {
2080 snd_cs4231_ebus_free(chip);
2081 snd_printdd("cs4231-%d: Unable to register EBUS play DMA\n",
2082 dev);
2083 return -EBUSY;
2084 }
2085 if (ebus_dma_irq_enable(&chip->p_dma.ebus_info, 1)) {
2086 snd_cs4231_ebus_free(chip);
2087 snd_printdd("cs4231-%d: Unable to enable EBUS play IRQ\n", dev);
2088 return -EBUSY;
2089 }
2090
2091 if (snd_cs4231_probe(chip) < 0) {
2092 snd_cs4231_ebus_free(chip);
2093 return -ENODEV;
2094 }
2095 snd_cs4231_init(chip);
2096
2097 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
2098 chip, &snd_cs4231_ebus_dev_ops)) < 0) {
2099 snd_cs4231_ebus_free(chip);
2100 return err;
2101 }
2102
2103 return 0;
2104 }
2105
2106 static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
2107 {
2108 struct snd_card *card;
2109 int err;
2110
2111 err = cs4231_attach_begin(&card);
2112 if (err)
2113 return err;
2114
2115 sprintf(card->longname, "%s at 0x%lx, irq %d",
2116 card->shortname,
2117 edev->resource[0].start,
2118 edev->irqs[0]);
2119
2120 err = snd_cs4231_ebus_create(card, edev, dev);
2121 if (err < 0) {
2122 snd_card_free(card);
2123 return err;
2124 }
2125
2126 return cs4231_attach_finish(card);
2127 }
2128 #endif
2129
2130 static int __init cs4231_init(void)
2131 {
2132 #ifdef SBUS_SUPPORT
2133 struct sbus_bus *sbus;
2134 struct sbus_dev *sdev;
2135 #endif
2136 #ifdef EBUS_SUPPORT
2137 struct linux_ebus *ebus;
2138 struct linux_ebus_device *edev;
2139 #endif
2140 int found;
2141
2142 found = 0;
2143
2144 #ifdef SBUS_SUPPORT
2145 for_all_sbusdev(sdev, sbus) {
2146 if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
2147 if (cs4231_sbus_attach(sdev) == 0)
2148 found++;
2149 }
2150 }
2151 #endif
2152 #ifdef EBUS_SUPPORT
2153 for_each_ebus(ebus) {
2154 for_each_ebusdev(edev, ebus) {
2155 int match = 0;
2156
2157 if (!strcmp(edev->prom_node->name, "SUNW,CS4231")) {
2158 match = 1;
2159 } else if (!strcmp(edev->prom_node->name, "audio")) {
2160 const char *compat;
2161
2162 compat = of_get_property(edev->prom_node,
2163 "compatible", NULL);
2164 if (compat && !strcmp(compat, "SUNW,CS4231"))
2165 match = 1;
2166 }
2167
2168 if (match &&
2169 cs4231_ebus_attach(edev) == 0)
2170 found++;
2171 }
2172 }
2173 #endif
2174
2175
2176 return (found > 0) ? 0 : -EIO;
2177 }
2178
2179 static void __exit cs4231_exit(void)
2180 {
2181 struct snd_cs4231 *p = cs4231_list;
2182
2183 while (p != NULL) {
2184 struct snd_cs4231 *next = p->next;
2185
2186 snd_card_free(p->card);
2187
2188 p = next;
2189 }
2190
2191 cs4231_list = NULL;
2192 }
2193
2194 module_init(cs4231_init);
2195 module_exit(cs4231_exit);
Linux kernel - Deliverables
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